But caution about the task of uniting a divided country soon intrudes in the editorials.

Centre-left Le Monde has no doubt that "a huge task awaits Emmanuel Macron", which conservative papers like Le Figaro sum up as Mr Macron's "positive, dynamic, reformist France, open to Europe" representing "only a quarter of French citizens", with another half from the far right and much of the left "radically hostile to the values that it embodies".

Still, many papers are pleased for the moment that, as Les Echos says, an "astonished world sees a young, audacious, and conquering France... at a time of triumphant populism".

Liberation too sees a "win for the Republic" that told the "xenophobes - even though they remain strong, threatening and active - that France does not want them."

'Europe breathes again'

German newspapers express a sense of relief that Marine Le Pen's anti-EU programme was defeated. "Europe can breathe again", in the words of the top-selling tabloid Bild.

But concerns about the next step are not far from the front pages. Holger Steltzner in the centre-right Frankfurter Allgemeine Zeitung is worried by a recent poll that shows widespread opposition to globalisation in France.

He warns that the "Franco-German engine" can only revive Europe through "acceptance of the challenges of globalisation… and more of the market economy, rather than greater redistribution of tax revenues through Brussels".

The centre-left Sueddeutsche Zeitung's Stefan Kornelius says the result "averts disaster" for France and the EU, but he also sees danger in Emmanuel Macron's call for the public to reject the old party system at next month's parliamentary elections.

He advises Mr Macron not to be a "super-president" who ignores the parties, as these "transmission belts for popular moods and concerns" can help him "re-energise the political centre" and counter the National Front.

And Lilith Volkert in the same paper calls on Mr Macron to turn En Marche into a "powerful party" to retain momentum for the parliamentary elections.

'Turning point'

In Italy, La Repubblica hopes that the vote marks a "turning point" for Europe away from populism.

Corriere della Sera's Aldo Cazzullo expresses wonder at a major country "writing a blank cheque to a young man who went against the pessimistic and populist spirit of the time", but advises Mr Macron to underestimate neither the ability of the old parties to recover nor the anti-globalisation "anger" among those who did not vote for him.

Wolfgang Hansson in Sweden's Aftonbladet agrees that the old parties will do "all in their power" to block Mr Macron's policies if they make a comeback at the parliamentary elections.

He fears that they could make France "ungovernable", and that failure to address unemployment and inequality means "it's only a matter of time before new and old extremists once again get the chance to take over".

Belgium's Le Soir thinks Mr Macron's victory speech, in which he reached out to France's malcontents, "shows that he got the message", but fears that failure to win a parliamentary majority will leave him a "weakened president, hostage to the petty games of other political groups".

Spain's El Pais too sees "huge challenges" in attempting a reform programme with no political machine to speak of.

By contrast, Peter Vermass in the Dutch newspaper NRC Next is relieved that French voters "did not allow themselves to be swayed by external factors like fake news, foreign propaganda or the continuing terrorist threat", and praised the new president's victory speech for avoiding triumphalism.

'Great war'

Polish papers highlight tensions ahead between western members of the EU and the more authoritarian governments of the east.

Image copyrightGazeta WyborczaImage caption
Gazeta Wyborcza sees no end to the "great war over Europe"

Marek Beylin in Poland's liberal Gazeta Wyborcza warns that the "great war between European democracies and authoritarian nationalists will rage again tomorrow", once the celebrations are over, although he is confident that Mr Macron's win shows that "Europe is coping with the assault" from the right.

Jerzy Haszczynski in the conservative Rzeczpospolita agrees that the "European Union has steered away from a great reef", in particular over restraining Russia's ambitions, but expects Poland's right-wing government to see relations with France suffer.

BBC Monitoring reports and analyses news from TV, radio, web and print media around the world. You can follow BBC Monitoring on Twitter and Facebook.